Portable Stainless Steel 316 Thermal Lunch Box With Insulation Bag Leak-Proof Bento Box Adult Student Food Container800ml/1500ml Portable Stainless Steel 316 Thermal Lunch Box With Insulation Bag Leak-Proof Bento Box Adult Student Food ContainerMaterial: stainless steel 316, food grade PP, silicone;Color:Beige,Coffee;Capacity:800ml,1500ml;Size:21.5*12*8cm,21.5*12*14.5cm;Weight:330g,550g;Keep warm time:Single Lunch Box = About 4 Hours.Lunch Box With Bag = About 6 Hours.